Meghan Trainor, the Grammy-winning singer best known for her anthem “All About That Bass,” has always been a vocal advocate for body positivity. But after giving birth to her first son, Riley, in 2021, Trainor took on a new health journey—one that prioritized both her mental well-being and physical transformation. Through a combination of lifestyle changes, daily exercise, weight training, professional support, and weight-loss medication, she shed an impressive 60 pounds.
Her journey was not about chasing perfection. Instead, it was about showing up for herself and her family in a way that felt sustainable and strong. Here’s an in-depth look at how Meghan Trainor transformed her life, body, and mindset after becoming a mother.
A New Chapter: Postpartum Motivation
After welcoming her son Riley, Trainor found herself at her heaviest, weighing over 200 pounds. More than the number on the scale, it was how she felt physically and emotionally that pushed her to take action. She publicly shared that her goal wasn’t just about weight loss—it was about becoming the best version of herself for her child.
Setting a realistic goal of losing one pound per week, she mapped out a plan that would keep her accountable while also being gentle with herself during postpartum recovery.
Mounjaro and Professional Support
Trainor has been transparent about using Mounjaro, a prescription medication originally developed for type 2 diabetes, to support her weight loss. Mounjaro works by regulating blood sugar levels and slowing digestion, which helps reduce appetite and supports long-term weight management.
Importantly, she emphasized that this wasn’t a standalone solution. She worked closely with a dietician to ensure her medication use was safe, responsible, and part of a balanced plan.
By opening up about her use of weight-loss medication, Trainor helped reduce the stigma around medical support for weight loss and encouraged others to seek professional guidance.
Embracing Daily Exercise and Strength Training
Trainor didn’t rely solely on medication. She integrated a consistent workout routine into her lifestyle, including daily movement and strength-based exercises.
Lifting weights became a cornerstone of her fitness regimen. She credits weight training with helping her build lean muscle, improve energy, and feel stronger throughout her postpartum recovery. Unlike cardio-only routines, weight lifting helped her reshape her body, boost metabolism, and maintain long-term results.
Even on days when motivation was low, Trainor prioritized movement to stay connected to her goal and give herself a boost of energy.
Clean Eating and Balanced Nutrition
Alongside exercise and medication, Trainor embraced healthier eating habits. Working with a dietician allowed her to create a meal plan that supported fat loss while nourishing her body during postpartum healing.
Rather than cutting calories drastically, she focused on whole foods, balanced portions, and mindful eating. This included lean proteins, vegetables, fiber-rich foods, and hydration.
She also avoided fad diets or unsustainable restrictions, choosing instead to make long-term changes that could fit her lifestyle as a busy mom and performer.
Mental Health and Body Image Healing
One of the most important aspects of Trainor’s journey has been her dedication to mental health. She’s openly discussed how crucial it was to work on body image and emotional wellness while focusing on physical transformation.
Trainor explained that she had to “rewire” her thoughts around body image and learn to separate self-worth from size. That meant surrounding herself with positive support, setting boundaries, and using tools like therapy and journaling.
Mental clarity helped her stay committed without falling into old patterns of self-criticism or comparison. For Trainor, weight loss wasn’t just about numbers—it was about self-respect, strength, and healing.
A Lifestyle, Not a Phase
Trainor’s journey didn’t end when she reached her 60-pound weight loss goal. She continues to practice healthy habits daily, whether it’s making time for the gym, preparing nutritious meals, or checking in on her mental health.
She’s made it clear that her wellness journey is ongoing. It’s about maintaining a strong, confident lifestyle that allows her to feel empowered as a woman, artist, and mother.
Her success story is a reminder that weight loss doesn’t have to be rushed or rigid. With the right combination of support, strategy, and self-compassion, meaningful change is possible.
Final Thoughts
Meghan Trainor’s postpartum weight loss journey is a powerful example of how combining science, fitness, nutrition, and mental health can lead to lasting transformation. Her decision to be open about using Mounjaro, paired with consistent training and professional guidance, breaks the mold of traditional celebrity weight loss narratives.
She chose a path grounded in health, accountability, and emotional growth. For anyone navigating postpartum life or struggling with weight gain, Trainor’s story proves that change is possible with patience and a holistic approach.
